How To Create A Confirm Dialog Box Before Submit In Yii Framework

I’m new to Yii framework, I need to create a confirm dialog to pop up before I submit a form. Below is the code of the form used to approve and reject. I need a pop up to appear before I submit to confirm whether approved or rejected.

    <div class="row">

    		<?php echo $form->labelEx($model,'Approved'); ?>


     echo $form->radioButtonList($model, 'Approved',

                        array(  1 => 'Approved',

                                0 => 'Rejected',




        'labelOptions'=>array('style'=>'display:inline'), // add this code

        'separator'=>'  ',

    ) );






    		<?php echo $form->error($model,'Approved'); ?>


    <div class="row buttons">

    		<?php echo CHtml::submitButton($model->isNewRecord ? 'Create' : 'Save'); ?>


How can I achieve this